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95 € Cheap Flights from Denver International to Boise

Compare Denver International to Boise flight deals

Find the cheapest month or even day of the year to fly to Boise

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Flight deals from Denver International to Boise

Looking for a cheap last-minute deal or the best return flight from Denver International Airport to Boise Airport? If you want to travel next month, return fares start from 95 €. Find the lowest prices on one-way and return tickets right here.
Boise.95 € per passenger.Departing Tue, 11 Aug, returning Tue, 18 Aug.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Tue, 11 Aug, arriving in Boise.Inbound direct flight with Frontier Airlines departs from Boise on Tue, 18 Aug, arriving in Denver International.Price includes taxes and charges.From 95 €, select.
Boise.108 € per passenger.Departing Thu, 8 Oct, returning Thu, 15 Oct.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Thu, 8 Oct, arriving in Boise.Inbound direct flight with Frontier Airlines departs from Boise on Thu, 15 Oct, arriving in Denver International.Price includes taxes and charges.From 108 €, select.
Boise.131 € per passenger.Departing Thu, 3 Sep, returning Sun, 6 Sep.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Thu, 3 Sep, arriving in Boise.Inbound direct flight with Frontier Airlines departs from Boise on Sun, 6 Sep, arriving in Denver International.Price includes taxes and charges.From 131 €, select.
Boise.131 € per passenger.Departing Tue, 29 Sep, returning Thu, 1 Oct.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Tue, 29 Sep, arriving in Boise.Inbound direct flight with Frontier Airlines departs from Boise on Thu, 1 Oct, arriving in Denver International.Price includes taxes and charges.From 131 €, select.
Boise.164 € per passenger.Departing Wed, 26 Aug, returning Tue, 1 Sep.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Denver International on Wed, 26 Aug, arriving in Boise.Inbound indirect flight with Frontier Airlines, departs from Boise on Tue, 1 Sep, arriving in Denver International.Price includes taxes and charges.From 164 €, select.
Boise.172 € per passenger.Departing Thu, 26 Nov, returning Thu, 3 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Thu, 26 Nov, arriving in Boise.Inbound direct flight with Southwest Airlines departs from Boise on Thu, 3 Dec, arriving in Denver International.Price includes taxes and charges.From 172 €, select.
Boise.172 € per passenger.Departing Thu, 19 Nov, returning Thu, 26 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Thu, 19 Nov, arriving in Boise.Inbound direct flight with Southwest Airlines departs from Boise on Thu, 26 Nov, arriving in Denver International.Price includes taxes and charges.From 172 €, select.
Boise.172 € per passenger.Departing Tue, 1 Dec, returning Tue, 8 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Tue, 1 Dec, arriving in Boise.Inbound direct flight with Southwest Airlines departs from Boise on Tue, 8 Dec, arriving in Denver International.Price includes taxes and charges.From 172 €, select.
Boise.172 € per passenger.Departing Wed, 26 Aug, returning Tue, 1 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Wed, 26 Aug, arriving in Boise.Inbound direct flight with Southwest Airlines departs from Boise on Tue, 1 Sep, arriving in Denver International.Price includes taxes and charges.From 172 €, select.
Boise.233 € per passenger.Departing Wed, 20 Jan, returning Wed, 27 Jan.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Denver International on Wed, 20 Jan, arriving in Boise.Inbound indirect flight with Alaska Airlines, departs from Boise on Wed, 27 Jan, arriving in Denver International.Price includes taxes and charges.From 233 €, select.
Boise.244 € per passenger.Departing Thu, 14 Jan, returning Thu, 21 Jan.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Denver International on Thu, 14 Jan, arriving in Boise.Inbound direct flight with Southwest Airlines departs from Boise on Thu, 21 Jan, arriving in Denver International.Price includes taxes and charges.From 244 €, select.
Boise.269 € per passenger.Departing Mon, 15 Mar, returning Fri, 19 Mar.Return flight with United.Outbound direct flight with United departs from Denver International on Mon, 15 Mar, arriving in Boise.Inbound direct flight with United departs from Boise on Fri, 19 Mar, arriving in Denver International.Price includes taxes and charges.From 269 €, select.
Boise.277 € per passenger.Departing Thu, 20 May, returning Sat, 22 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Denver International on Thu, 20 May, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Sat, 22 May, arriving in Denver International.Price includes taxes and charges.From 277 €, select.
Boise.299 € per passenger.Departing Tue, 28 Jul, returning Sun, 2 Aug.Return flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Denver International on Tue, 28 Jul, arriving in Boise.Inbound direct flight with Frontier Airlines departs from Boise on Sun, 2 Aug, arriving in Denver International.Price includes taxes and charges.From 299 €, select.
Boise.316 € per passenger.Departing Thu, 20 May, returning Sat, 22 May.Return flight with United.Outbound direct flight with United departs from Denver International on Thu, 20 May, arriving in Boise.Inbound direct flight with United departs from Boise on Sat, 22 May, arriving in Denver International.Price includes taxes and charges.From 316 €, select.
Boise.454 € per passenger.Departing Mon, 27 Jul, returning Thu, 30 Jul.Return flight with Alaska Airlines and Frontier Airlines.Outbound indirect flight with Alaska Airlines, departs from Denver International on Mon, 27 Jul, arriving in Boise.Inbound indirect flight with Frontier Airlines, departs from Boise on Thu, 30 Jul, arriving in Denver International.Price includes taxes and charges.From 454 €, select.

Find the cheapest month to fly from Denver International to Boise

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver International to Boise flights are currently cheapest in August.
Jul
from 454 €
Aug
from 95 €
Sep
from 131 €
Oct
from 108 €
Nov
from 172 €
Dec
from 172 €
Jan
from 233 €
Feb
Find prices
Mar
from 269 €
Apr
Find prices
May
from 277 €
Jun
Find prices

Direct flights from Denver International to Boise

Denver International to Boise: Alternative routes

Compare routes from Denver International to Boise below. You may find an airport to fly into that's cheaper, faster, or easier than Boise.

Boise

5km from central Boise
ClosestCheapest
from 95 €
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Denver to Boise: Flight information

The things to know before you go.
Cheapest flight found95 €
Cheapest month to flyAugust
Average flight time2 hrs, 2 mins
Most popular airlineSouthwest Airlines
Average flights per week129

Finding cheap flights from Denver International to Boise: Frequently asked questions

The best price we found for a return flight from Denver International to Boise is 95 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 2 minutes is the average flight time from Denver International to Boise.
Southwest Airlines, United and Air Canada fly direct from Denver International to Boise.
As of July 2026, there are 129 flights per week flying from Denver International to Boise.
The cheapest month to fly from Denver International to Boise is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to Boise Airport on Tuesday, 11 August 2026.
Yes – the average flight time is 2 hours and 2 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Boise but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Boise is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Frontier Airlines offers the cheapest flight tickets to Boise.

Flying from Denver International Airport (DEN) to Boise Airport (BOI): what you need to know

  • The average time for a direct flight from Denver International Airport to Boise Airport is 2 hours.

  • Take your pick of 49 weekly Denver International Airport to Boise Airport flights. The 07:40 departure with Southwest Airlines is the earliest available. Southwest Airlines operates the latest service of the day at 22:55.

  • Your DEN to BOI flight won't wait if you're late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • During popular months such as July, you'll want to get to the airport well in advance. Arrive two hours before a domestic departure and four hours ahead for international flights whenever you're flying during a peak period in general.

  • You'll find a range of airlines offering direct flights from Denver International Airport to Boise Airport. When you're ready to start your Boise holiday, let one of these carriers fly you to this must-see part of the United States:

  • Most passengers choose to travel with United on this route.

  • United is the most punctual carrier offering DEN to BOI flights. A reliable 81.31% of its departures on this route land as scheduled.

  • Think about adding a stopover when booking your ticket from Denver International Airport to Boise Airport. Simply uncheck 'Direct flights only' to break up your trip, or perhaps see a new city along the way. Here's where you can stop between DEN and BOI:

    • Phoenix Sky Harbour Airport

    • Harry Reid International Airport

    • Salt Lake City Airport

How to find the cheapest flights from Denver International Airport (DEN) to Boise Airport (BOI)

  • The lowest price we've seen for a one-way Denver International Airport to Boise Airport flight is 47 €. A round-trip ticket right now is 95 €. Depending on the availability and when you book, these fares may change.

  • To pick up cheap tickets from DEN to BOI, book ahead. Airlines typically offer their best fares when flights are first made available.

  • May is the cheapest month for flights from Denver International Airport to Boise Airport. If you need to fly during a different time of year, the 'Whole month' tool will give you the lowest prices for every month.

  • Stay on top of deals for cheap flights from DEN to BOI by setting up a Price Alert. You'll get an email or notification through the app when a lower fare becomes available.

  • Find the perfect flight for you with the help of the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Denver International Airport to Boise Airport, use the 'Sort by' function. You can also filter by arrival and departure times, airline, and journey duration.

Handy information about Denver International Airport (DEN)

  • You'll find DEN at 8500 Pena Boulevard.

  • Denver International Airport maintains a strong on-time performance, making delays less likely. Departures from DEN make it to their destination as scheduled 80% of the time.

  • To get to Denver International Airport from central Denver, it takes about 35 minutes if you're travelling by car. This depends on traffic though. It's approximately 40 kilometres from the airport to the city centre.

  • The trip on public transport usually takes 35 minutes.

  • Booking a night at a hotel can take the stress out of getting to the airport on time. If you're looking for somewhere to stay before your flight from Denver International Airport to Boise Airport, take a look at Baymont by Wyndham Denver International Airport. It's a quick drive from DEN.

Arriving at Boise Airport (BOI)

  • If you have a late Denver International Airport to Boise Airport flight, few things top the convenience of being close to the terminal. Grab your bags from the carousel and then be tucked up in bed soon after at one of these hotels near BOI:

  • Fast-track your adventure by picking up a Boise Airport rental car. Grab a set of wheels from Budget, Alamo or Avis and explore beyond Boise's main sights.

  • Lock in the best rate by booking your ride from Boise Airport about one week in advance of your trip.

When to fly to Boise Airport (BOI)

  • It's time to work out your trip dates for your flight from Denver International Airport to Boise Airport. October is the busiest month to visit Boise. If you want a more laid-back vibe, go in March.

  • When booking your flight from Denver International Airport to Boise Airport, think about the kind of weather you enjoy. July is the warmest month in Boise, with temperatures ranging from 15ºC (59ºF) to 35ºC (95ºF).

  • Search for cheap tickets from DEN to BOI in January if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between -11ºC (12ºF) and 5ºC (41ºF) on average.

Explore more of the United States

  • Boise has loads to offer, but there are so many other parts of the United States you should also see. About 467 kilometres north of Boise, a visit to Spokane will keep your itinerary packed. Start with leading attractions like Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes.

  • Salt Lake City is another essential stop in the United States and is around 483 kilometres south-east of Boise. No trip is complete without seeing Salt Lake Utah Temple, Temple Square and Salt Lake City Tabernacle.

Plan the rest of your trip from Denver to Boise

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.